Technical specification

- inlet size - 220 mm x 600 mm
- max. grain size of the feed - below the inlet size
- slot adjustment scope - 15-55 mm
- power requirement - 22 kW
- estimate operational capacity - up to 10 m3/h (depending on the type of crushed material)
- crusher's mass with the drive - 3200 kg
- general dimensions without the drive - ~1490x1390x1125 [mm] (length/width/height)


TECHNICAL DESCRIPTION

General design
The crusher's body is made of sufficiently thick metal sheets which form a light and rigid box structure. The fixed jaw is mounted inside the body. The moving jaw is mounted on the pendulum which is suspended on the axis. The pendulum's axis is installed in sliding sleeves. The crusher's eccentric tube is mounted on rolling bearings installed in non-split sleeves and in the divided housing which also serves as the connecting rod. The rolling bearings are secured against dust with a proper labyrinth seal. The bearings are lubricated with grease by lubricators. Installed in the pendulum and connecting rod are bearing strips between which an expansion cylinder is mounted. A spring together with a cable ensure that the expansion cylinder works properly with the bearing strips and that the pendulum contacts the connecting rod. The eccentric tube, together with flywheels and bearing, is installed in the openings of the machine's body and fixed with clamps and tension screws. Mounted on the eccentric tube, using its driving key, are flywheels, of which one is grooved.


Description of operation
The electric motor's torque is transmitted via a belt and pulley transmission onto the crusher's eccentric tube, on whose eccentric section the bearing housing, also serving as the connecting rod, is mounted. Via the expansion cylinder, the rotating eccentric tube transmits swinging motion onto the moving jaw mounted on the pendulum. When the pendulum moves forward, the material fed into the crushing chamber is crushed to the size of the outlet slot. When the pendulum moves back, the crushed material falls through the widening slot. Thus, the crushing operation is cyclic and occurs only when the pendulum is swinging forward. The energy supplied by the motor during idle movement is absorbed by the flywheels through which it is emitted during operation.